Maintenance Every 10 Hours Of Operation; Lubricating The Joints - Komatsu WB93S-5 F50003 Operation & Maintenance Manual

4.8.4 MAINTENANCE EVERY 10 HOURS OF OPERATION

4.8.4.a

LUBRICATING THE JOINTS

IMPORTANTE
Clean the grease nipples before applying the grease pump.
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After lubrication, remove all the contaminated grease that may have spread out of the nipples.
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If the machine is used in difficult conditions, carry out this operation more frequently than usual.
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This maintenance operation must be carried out with the front bucket resting on the ground and the backhoe
equipment completely extended and resting on the ground, too, as indicated in the figure.
Lubricate the joints using a syringe and the prescribed type of grease (see "4.3 FUEL, COOLANT AND
LUBRICANTS" and "4.5.1 LUBRICATION DIAGRAM").
IMPORTANTE
As a general rule, it is important to consider that each cylinder is provided with two grease nipples
q
positioned on the couplings and that each pin serving as fulcrum point for a movement is provided with
at least one grease nipple.
POINTS TO BE LUBRICATED ON THE FRONT LOADER
5 6
4
3
2
1
1 - 4in1 bucket opening fulcrum pin
2 - 4in1 bucket opening cylinder head pin
3 - Tie rod-bucket coupling pin
4 - 4in1 bucket opening cylinder base pin
5 - Bucket fulcrum pin
6 - Tie rod-lever coupling pin
7 - Bucket cylinder head pin
8 - Lever fulcrum pin
9 - Lifting cylinder head pin
10 - Lifting cylinder base pin
11 - Arm fulcrum pin
12 - Bucket cylinder base pin
8 10
7 11
9
12
MAINTENANCE PROCEDURES
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